WO2018068724A1

WO2018068724A1 - Communication method, apparatus and system

Info

Publication number: WO2018068724A1
Application number: PCT/CN2017/105683
Authority: WO
Inventors: 唐珣; 柴丽
Original assignee: 华为技术有限公司
Priority date: 2016-10-13
Filing date: 2017-10-11
Publication date: 2018-04-19
Also published as: US20210212047A1; US10966205B2; EP3806520A1; EP3506671B1; EP3506671A4; US12058662B2; CN107948987A; CN107948987B; EP3506671A1; US20190239207A1

Abstract

Provided are a communication method, apparatus and system. A user equipment can communicate with the network device by using a plurality of beams, and the plurality of beams comprise a first beam and at least one second beam, wherein the first beam is a serving beam for the user equipment to monitor control information, and the second beam is a beam other than the serving beam. The method comprises: a user equipment determining that a serving beam is obstructed; and the user equipment obtaining a first message from a network device by means of a first beam or a second beam. In the method, a UE can determine that a serving beam is obstructed so as to acquire a first message sent by a network device, thereby eliminating the adverse influence caused due to the fact that the serving beam is obstructed. Correspondingly, a network device also can determine that a serving beam is obstructed so as to send a first message, thereby eliminating the adverse influence caused due to the fact that the serving beam is obstructed.

Description

Communication method, device and system

The present application claims the priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a communication method, apparatus, and system.

Background technique

Currently, with the gradual saturation of low frequency bands (for example, below 6 GHz) of wireless communication systems and the increasing demand for high-speed and large-capacity communication, communication using high-frequency bands (for example, above 6 GHz) will become a trend. In the field of high-frequency wireless communication, as the frequency increases, the path loss increases and the coverage of the cell decreases. In this case, more network devices (such as base stations) need to be deployed in the same area to ensure coverage, which will greatly increase the network. Deployment costs. In order not to increase the cost of network deployment, beam forming techniques can be used. Beam forming is a multi-antenna processing technique that uses a plurality of antennas to form a narrower communication beam, provides beam gain, and can compensate for increased path loss to some extent, ensuring that the cell radius is not significantly reduced relative to the low frequency.

In the Beam Forming technology, there are multiple beams in the cell. User equipment (UE) in the cell only listens to information sent on one of the beams, which may include broadcast messages, uplink and downlink scheduling messages, etc. The service beam of the UE, the service beam is usually the beam with the best signal quality among all the beams that the UE can receive. In order to obtain a large beam gain, the beam is usually very narrow, and in order to ensure continuous coverage within the cell, multiple narrow beams are required. In this way, for the UE, the beam switching problem needs to be faced when moving in the cell, that is, after moving from one beam coverage area to another beam coverage area of the cell, the service beam needs to be converted.

In the prior art, the UE measures the different downlink beams and feeds back the measurement result to the base station. The base station determines, according to the measurement result, whether the service beam of the UE needs to be changed, and if necessary, sends a beam switching indication through the current service beam, indicating The UE starts listening for the signal of the other beam at the next predetermined time, that is, the other beam is used as the next serving beam of the UE. In short, in the prior art, the base station initiates a beam conversion process according to the beam measurement result of the feedback of the UE.

However, due to different cell scenarios, the channel quality of the high-frequency communication channel in some cells changes drastically, and the channel quality is often greatly reduced. At the same time, the high-frequency signal has poor scattering and diffracting ability, and the signal propagation path is mostly a direct refraction path. Due to obstacles, high-frequency channels are more vulnerable for various reasons, and beam blocking sometimes occurs. In this case, communication between the base station and the UE is adversely affected.

Summary of the invention

The present invention provides a communication method, apparatus and system to solve the technical problem that communication is adversely affected in a beam blocking state.

According to a first aspect of the embodiments of the present invention, a communication method is provided, in which a user equipment and a network device can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second beam, wherein the first Beam for The user equipment monitors the service beam of the control information, where the second beam is a beam outside the service beam, the method includes: the user equipment determines the service beam blocking; the user equipment passes the first The beam or second beam obtains a first message from the network device.

With reference to the first aspect, in a first optional embodiment of the first aspect, the method further includes: in response to the first message, the user equipment sends a response message, where the response message indicates that the user equipment obtains The beam used by the first message.

With reference to the first optional embodiment of the first aspect, in a second optional embodiment of the first aspect, the method further includes: the user equipment obtaining a beam that is sent by the network device in response to the response message And converting the message, the beam switching message is used to indicate that one of the multiple beams is the next serving beam of the user equipment.

With reference to the first aspect, in a third optional embodiment of the first aspect, the method further includes: the user equipment sends a blocking message by using a preset uplink resource, where the blocking message is used to indicate that the network device responds to The blocking message sends the first message.

With reference to the first, second or third alternative embodiment of the first aspect, in the fourth alternative embodiment of the first aspect, the second beam comprises a plurality of beams.

With reference to the fourth optional embodiment of the first aspect, in a fifth optional embodiment of the first aspect, the user equipment obtains the first message from the network device by using the first beam or the second beam, The user equipment receives the first message sent by the network device on the first beam and each of the second beams; or

The user equipment searches for all the beams in the preset beam combination, and the preset beam combination includes: the first beam, or the first beam and any number of second beams; and receiving the network device Decoding a first message sent by any one or more of the preset beam combinations; or

The user equipment selects a corresponding single beam from the first beam and all the second beams to search at different time points by using a correspondence between the pre-configured beam and the time point; receiving the network device by using the selected single The first message sent on the beam; or,

Searching, by the user equipment, all the beams in the preset beam combination; when the first message is not received on all the beams of the preset beam combination, using a pre-configured beam and a time point correspondence, different The time point selects a corresponding single beam from among the plurality of beams or the beams outside the preset beam combination for searching; and receives the first message sent by the network device through the selected single beam.

With reference to the first optional embodiment of the first aspect, in a sixth optional embodiment of the first aspect, the first message carries: one or more combinations of indication information and data information.

With reference to the sixth optional embodiment of the first aspect, in the seventh optional embodiment of the first aspect, the indication information is a PDCCH order; the method further includes: the user equipment is generated in response to the PDCCH order And transmitting, by the user equipment, the response message, in response to the first message, that: the user equipment sends the preamble on a preset random access resource in a beam used by the first message. Code; or,

The user equipment sends the preamble on a preset random access resource in all the beams used by the first message; or

Determining, by the user equipment, a beam having the largest value of communication quality among all the beams used by the first message, and transmitting the preamble on a preset random access resource in the determined beam; or

After the user equipment sends the preamble on a preset random access resource in a beam used by the first message, the user equipment receives the first message from another beam, and if another beam communicates The value of the quality is greater than the previous one A value of a communication quality of the beam, and a preamble is transmitted on the preset random access resource in the another beam.

With reference to the sixth optional embodiment of the first aspect, in the eighth optional embodiment of the first aspect, the indication information is uplink scheduling indication information, where the method further includes: the user equipment determines that all the beams are included a measurement report of the communication quality; the user equipment, in response to the first message, sending, by the user equipment, the preset time-frequency resource on any one of the beams used by the user equipment by using the first message Send the measurement report.

With reference to the second optional embodiment of the first aspect, in the ninth optional embodiment of the first aspect, the method further includes: in response to the serving beam blocking, the user equipment is in a plurality of preset times The channel quality of the at least one of the plurality of beams is measured in the segment; the user equipment compares the value of the channel quality of each time segment with a preset reliability threshold and a preset unreliable threshold. The preset reliable threshold is greater than the preset unreliable threshold; if the measured channel quality in a plurality of preset time periods is lower than the preset unreliable threshold, the user equipment starts a preset timer; if the channel quality measured in a plurality of preset time periods is higher than a preset reliability threshold after the preset timer is started, the user equipment terminates the preset timer; After the preset timer is started, the measured channel quality is not higher than the preset reliability threshold and the preset timer expires, and the user equipment triggers a cell reselection procedure.

According to a second aspect of the embodiments of the present invention, a communication method is provided, in which a user equipment and a network device can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second beam, wherein the first beam Monitoring, by the user equipment, a service beam of the control information, where the second beam is a beam outside the service beam, the method includes: the network device determining the service beam blocking; The first beam or the second beam transmits the first message.

With reference to the second aspect, in a first optional embodiment of the second aspect, the determining, by the network device, the service beam blocking includes: if the network device sends the second message, the network device is preset Not receiving the feedback message sent by the user equipment in response to the second message; the network device determines that the service beam is blocked; or

And if the network device receives the blocking message sent by the user equipment by using the first beam or the second beam, the network device determines that the service beam is blocked.

With reference to the second aspect, in a second optional embodiment of the second aspect, the method further includes: the network device obtaining a response message sent by the user equipment in response to the first message, the response message Instructing the user equipment to obtain a beam used by the first message; in response to the response message, the network device sends a beam switching message, where the beam switching message is used to indicate that one of the multiple beams is The next service beam of the user equipment.

With reference to the second aspect, the second aspect, or the second optional embodiment of the second aspect, in the third optional embodiment, the second beam includes multiple beams.

With reference to the third optional embodiment of the second aspect, in the fourth optional embodiment of the second aspect, the network device sends the first message by using the first beam or the second beam, including: the network device Transmitting the first message by the first beam and each of the second beams; or

The network device sends the first message by using all the beams in the preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of second beams; or ,

The network device selects a corresponding single beam from the first beam and all the second beams at different time points by using a correspondence between the pre-configured beam and the time point; and sending the first message by using the selected single beam ; or By,

Transmitting, by the network device, the first message by using all the beams in the preset beam combination; if the user equipment is not received on all beams of the preset beam combination, sending the user equipment in response to the first message Response message, using a correspondence between the pre-configured beam and the time point, selecting a corresponding single beam from the plurality of beams or the beams outside the preset beam combination at different time points; passing the selected single beam Sending the first message.

With reference to the first optional embodiment of the second aspect, in the fifth optional embodiment of the second aspect, the first message carries: one or more combinations of indication information and data information.

With reference to the fifth optional embodiment of the second aspect, in the sixth optional embodiment of the second aspect, the indication information is a PDCCH order, and the network device obtains, by the network device, the first message sent in response to the first message. The response message includes: the network device receiving a preamble sent by the user equipment by using one beam or multiple beams.

With reference to the sixth optional embodiment of the second aspect, in the seventh optional embodiment of the second aspect, the method further includes: if the preamble is received by using one beam, the network device uses the preamble The beam used by the code is determined as the next service beam; or; if the preamble is received by at least two beams, the network device determines the beam having the highest communication quality value in the at least two beams as the next one a service beam; or, if the preamble is received by at least two beams, the network device determines a beam used by the last received preamble as a next service beam; the response to the response message, Transmitting, by the network device, a beam switching message, that: the network device sends the identifier information of the next service beam in response to the response message.

With reference to the fifth optional embodiment of the second aspect, in the eighth optional embodiment of the second aspect, the indication information is uplink scheduling indication information, and the network device obtains that the user equipment is responsive to the first The response message sent by the message includes: the network device receiving a measurement report of all the beams in the multiple beams sent by the user equipment by using one beam.

With reference to the eighth optional embodiment of the second aspect, in the ninth optional embodiment of the second aspect, the method further includes: the network device responding to the measurement report, all of the multiple beams The signal power maximum beam in the beam is determined as the next service beam; in response to the response message, the network device sends a beam switching message, including: the network device sending the identification information of the next service beam.

According to a third aspect of the embodiments of the present invention, there is provided a communication apparatus, which is applied to a user equipment, wherein the user equipment and the network equipment can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second a beam, wherein the first beam is a service beam for the user equipment to monitor control information, the second beam is a beam outside the service beam, and the device includes: a processing module, configured to determine the service beam And a receiving module, configured to obtain, by the first beam or the second beam, a first message from the network device.

With the third aspect, in a first optional embodiment of the third aspect, the device further includes: a sending module, configured to send a response message, the response message indicating the receiving module, in response to the first message Obtaining the beam used by the first message.

With reference to the first alternative embodiment of the third aspect, in a second alternative embodiment of the third aspect,

The receiving module is further configured to obtain a beam switching message that is sent by the network device in response to the response message, where the beam switching message is used to indicate that one of the multiple beams is under the user equipment A service beam.

In conjunction with the third aspect, in a third alternative embodiment of the third aspect, characterized in that

The sending module is further configured to send a blocking message by using a preset uplink resource, where the blocking message is used to indicate the The network device transmits the first message in response to the blocking message.

With reference to the first, second or third alternative embodiment of the third aspect, in a fourth optional embodiment of the third aspect, the second beam comprises a plurality of beams.

With reference to the fourth optional embodiment of the third aspect, in a fifth optional embodiment of the third aspect, the receiving module is configured to obtain, by using the first beam or the second beam, the first from the network device The message is specifically configured to: receive, by the receiving module, the first message sent by the network device on the first beam and each of the second beams; or

The receiving module is configured to search for all beams in a preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of second beams; and receiving the network The first message sent by the device through any one or more of the preset beam combinations; or

The receiving module is configured to select a corresponding single beam from the first beam and all the second beams to search at different time points by using a correspondence between the pre-configured beam and the time point; and receiving the network device The first message sent on a selected single beam; or,

The receiving module is configured to search for all the beams in the preset beam combination; when the first message is not received on all the beams of the preset beam combination, the pre-configured beam and time point correspondence are used. And selecting, according to different time points, a corresponding single beam from the beams outside the preset beam combination for searching; receiving the first message sent by the network device by using the selected single beam.

With reference to the first optional embodiment of the third aspect, in the sixth optional embodiment of the third aspect, the first message carries: one or more combinations of indication information and data information.

With reference to the sixth optional embodiment of the third aspect, in the seventh optional embodiment of the third aspect, the indication information is a PDCCH order; the processing module is further configured to generate a preamble in response to the PDCCH order The sending module is configured to send a response message in response to the first message, where the sending module is configured to: preset, on a random access resource, a sending station in a beam used by the first message. Said preamble; or,

The sending module is configured to send the preamble on a preset random access resource in all beams used by the first message; or

The sending module is configured to determine a beam with the largest signal power among all the beams used by the first message, and send the preamble on a preset random access resource in the beam with the highest power; or

The sending module is configured to: after sending the preamble on a preset random access resource in a beam used by receiving the first message, receive the first message from another beam, if another The beam signal power is greater than the signal power of the previous beam, and the preamble is transmitted on the preset random access resource in the other beam.

With reference to the sixth optional embodiment of the third aspect, in the eighth optional embodiment of the third aspect, the indication information is uplink scheduling indication information, and the processing module is further configured to determine a communication quality including all the beams. The sending module is configured to send a response message in response to the first message, where the sending module is configured to: use the preset time-frequency on any one of the beams used by the first message. The measurement report is sent on the resource.

With reference to the second optional embodiment of the third aspect, in the ninth optional embodiment of the third aspect, the processing module is further configured to, in response to the serving beam blocking, continuously for a plurality of preset time periods Measuring a channel quality of at least one of the plurality of beams; comparing a value of the channel quality of each time period with a preset reliability threshold value and a preset unreliable threshold value, the preset reliable gate The limit is greater than the preset unreliable threshold; if the measured channel quality in the plurality of preset time periods is lower than the preset unreliable threshold, the preset timer is started; Timer start The channel quality measured in a plurality of preset time periods is higher than the preset reliability threshold, and the preset timer is terminated; if the preset timer is started, the measurement is performed continuously for a plurality of preset time periods. The channel quality is not higher than the preset reliable threshold, triggering the cell reselection process.

According to a fourth aspect of the embodiments of the present invention, there is provided a communication apparatus, applicable to a network device, wherein a user equipment and the network device can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second a beam, wherein the first beam is a service beam for the user equipment to monitor control information, and the second beam is a beam outside the service beam, the device includes: the processing module, configured to determine the The service beam is blocked; the sending module is configured to send the first message by using the first beam or the second beam.

With reference to the fourth aspect, in a first optional embodiment of the fourth aspect, the device further includes: a receiving module; the processing module is configured to determine the service beam blocking, specifically: if the network device sends the first After the second message, the receiving module does not receive the feedback message sent by the user equipment in response to the second message within a preset duration; the processing module is configured to determine that the service beam is blocked; or

And the processing module is configured to determine the service beam blocking if the receiving module receives the blocking message sent by the user equipment by using the first beam or the second beam.

With reference to the fourth aspect, in a second optional embodiment of the fourth aspect, the receiving module is further configured to obtain a response message that is sent by the user equipment in response to the first message, where the response message indicates The user equipment obtains a beam used by the first message; the sending module is further configured to: in response to the response message, the network device sends a beam switch message, where the beam switch message is used to indicate the multiple One beam in the beam is the next serving beam of the user equipment.

With reference to the fourth aspect, the fourth aspect, or the second optional embodiment of the fourth aspect, in the third optional embodiment, the second beam includes multiple beams.

With reference to the third optional embodiment of the fourth aspect, in the fourth optional embodiment of the fourth aspect, the sending module is configured to send the first message by using the first beam or the second beam, specifically: Transmitting module, configured to send the first message by using the first beam and each of the second beams; or

The sending module is configured to send the first message by using all the beams in the preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of second Beam; or,

The sending module is configured to select a corresponding single beam from the first beam and all the second beams at different time points by using a correspondence between the pre-configured beam and the time point; sending the selected by using the selected single beam First message; or,

The sending module is configured to send the first message by using all the beams in the preset beam combination; if the user equipment is not received on all beams of the preset beam combination, responding to the first a response message sent by the message, using a correspondence between the pre-configured beam and the time point, selecting a corresponding single beam from the beams outside the preset beam combination in the multiple beams at different time points; The first message is sent by a single beam.

With reference to the first optional embodiment of the fourth aspect, in the fifth optional embodiment of the fourth aspect, the first message carries: one or more combinations of indication information and data information.

With reference to the fifth optional embodiment of the fourth aspect, in the sixth optional embodiment of the fourth aspect, the indication information is a PDCCH order, and the receiving module is configured to obtain, by the user equipment, the first device The response message sent by the message is specifically: the receiving module is configured to receive a preamble sent by the user equipment by using one beam or multiple beams.

With reference to the sixth optional embodiment of the fourth aspect, in the seventh optional embodiment of the fourth aspect, the processing module, And if the preamble is received by using one beam, the sending module is configured to determine a beam used by the preamble as a next service beam; or, if the preamble is received by at least two beams And determining, by the at least two beams, a beam having the highest signal power as the next service beam; or, if the preamble is received by the at least two beams, determining a beam used by the last received preamble as And a sending module, configured to: send, by the sending module, the identifier information of the next service beam in response to the response message, in response to the response message.

With reference to the fifth optional embodiment of the fourth aspect, in the eighth optional embodiment of the fourth aspect, the indication information is uplink scheduling indication information, and the receiving module is configured to obtain, by the receiving, the user equipment The response message sent by the first message is specifically: the receiving module, configured to measure reports of all the beams in the multiple beams sent by one beam.

With reference to the eighth optional embodiment of the fourth aspect, in the ninth optional embodiment of the fourth aspect, the processing module is further configured to: in response to the measurement report, all the beams in the multiple beams The signal power maximum beam is determined as the next service beam; the sending module is configured to send a beam switch message in response to the response message, where the sending module is configured to send the next one in response to the response message Identification information of the service beam.

According to a fifth aspect of the present invention, a communication system is provided, including: a user equipment and a network device, wherein the user equipment may include the communication device according to any one of the preceding aspects, the network device may include the foregoing fourth A communication device according to any of the preceding claims.

In the method provided by the embodiment of the present invention, the UE may determine the service beam blocking, and then obtain the first message sent by the network device, thereby eliminating the adverse effect caused by the service beam blocking. Correspondingly, the network device can also determine the service beam blocking, and then send the first message, thereby eliminating the adverse effects caused by the service beam blocking.

Further, by means of information interaction, the next service beam can be determined, so that the UE switches from the previous service beam to the next service beam to resume communication with the network device.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it will be apparent to those skilled in the art that In other words, other drawings can be obtained based on these drawings without paying for creative labor. In addition, the descriptions of the drawings are not to be construed as limiting.

FIG. 1 is a schematic diagram of a coverage of a base station according to an embodiment of the present invention;

2 is a schematic diagram of a TRP layout according to an embodiment of the present invention;

3 is a schematic signaling diagram of a communication method according to an embodiment of the present invention;

4 is a schematic signaling diagram of a communication method according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of allocation of SR resources according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic diagram of allocation of SR resources according to another embodiment of the present invention; FIG.

7 is a schematic flowchart of a communication method according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of cell triggering according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a communication apparatus according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another communication apparatus according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a network device according to an embodiment of the present invention.

detailed description

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

As an example, embodiments of the present invention may be used in a cellular communication system, for example, for a long term evolution (LTE) cellular communication system, or for a 5G or new radio (NR) communication system.

For an LTE communication system, there are multiple cells under each evolved base station (evolved NodeB, eNB). In each cell, the eNB can use multiple beams to complete cell coverage. For example, as shown in FIG. 1, the eNB in FIG. It is a base station in the LTE system, and the coverage is expanded by forming a narrow beam (hereinafter referred to as a beam) in the downlink direction, and can also be received in the beam domain in the uplink direction.

For a 5G or NR system, under a new radio node (NR-NB), there may be one or more transmission reception points (TRPs). The TRP is a wireless signal transceiving unit in a 5G or NR system, which expands the coverage by forming a narrow beam in the downlink direction and can also receive on the beam domain in the uplink direction. As an example, as shown in FIG. 2, each TRP can form multiple beams to communicate with the UE.

The UE determines the available beam by searching for the pilot signal sent by the eNB or the TRP, and feeds back the selection result to the eNB or the TRP. Meanwhile, if multiple antennas are deployed on the UE side, Beam Forming transceiver technology can also be used on the UE side.

FIG. 3 is a signaling diagram of a communication method according to an exemplary embodiment of the present invention. The communication method is applied to a communication system including a user equipment UE and a network device, and the user equipment and the network equipment can communicate using multiple beams. In this embodiment, the UE does not have uplink resources to the network equipment (such as the base station). The feedback service beam blocks this situation.

S301. The UE determines that the service beam is blocked.

The service beam blocking in this embodiment means that the signal quality of the serving beam of the UE is lower than the first threshold. For example, in a certain scenario, the beam signal quality received by the UE side suddenly falls below the first threshold, that is, the beam blocking phenomenon occurs. At this time, the normal communication between the UE and the network device is blocked. For the network device, the UE at this time is equivalent to a certain degree of offline state.

When the service beam is blocked, the UE can usually find the situation first by measuring the beam quality in real time. For example, when the UE finds that the reference signal receiving power (RSRP) of the serving beam is less than the first threshold, it may be considered that service beam blocking occurs. As an example, the first threshold may be notified by the radio resource control (RRC) message to the UE or specified in the communication protocol, and the first threshold may generally correspond to a minimum that can accurately detect a physical downlink control channel (PDCCH). RSRP.

S302. The UE starts a beam search function.

For the UE, if the uplink resource is not set in advance for the UE to feed back the beam measurement result or the service beam blocking to the network device, the UE can only confirm the communication by sending the information sent by the network device. Determine if there is a beam that can establish communication with the network device.

In the embodiment of the present invention, after the service beam is blocked, the UE will start a blind search (or a heuristic), that is, search for the first message from the network device in one or more beams on multiple beams, in order to pass these The beam searching for the first message re-establishes communication with the network device.

The specific search range can be configured by the network device or specified in the protocol. For example, the UE may search for control or scheduling information on multiple downlink beams, such as searching for a PDCCH indication by a cell radio network temporary identifier (C-RNTI). If the UE can search on multiple beams at the same time, multiple beams can be searched at the same time; if the UE has limited capability and can only be detected in a single beam at any time point, the correspondence between the beam and the time point can be configured in advance by the network device. And notifying the UE, and the UE can search for different beams at different time points according to the correspondence. In addition, in the embodiment of the present invention, in order to improve the search efficiency of the UE, the network device may also configure the manner in which the UE searches for the beam in advance, for example, searching in the preset beam combination simultaneously, when the first message is not searched, considering Power or other factors, and then search for a single beam in the remaining beams according to the correspondence between the beam and the time point. As an example, the preset beam combination includes at least: a service beam, and may further include: a candidate beam or a beam with better communication quality filtered according to the current beam measurement result, where the candidate beam is reported to the UE last time A beam of the network device other than the service beam.

In the embodiment of the present invention, the first message is not limited in this embodiment. For example, the first message may be: uplink scheduling information, or downlink scheduling information carrying downlink data, or downlink scheduling information not carrying downlink data. , or, configuration information, or, downstream data, and so on. Generally speaking, as long as the first message is sent by the network device, the first message can be used by the UE on behalf of the current beam.

S303. The network device determines a service beam blocking of the UE.

As an example, when the network device does not perform corresponding feedback after the network device sends data to the UE through the service beam of the UE, the UE may be considered to have an abnormality in the service beam, that is, congestion occurs.

For example, after the network device sends the downlink data to the UE, the acknowledgment (ACK) or negative acknowledgement (NACK) information fed back by the UE is not received within the preset duration, or the network device sends the uplink scheduling to the UE. After receiving the data from the UE to the network device within the preset duration, the network device may consider that the service beam of the UE is abnormal.

S304. The network device sends the first message by using the first beam or the second beam.

In this embodiment, the UE does not have an uplink resource to feed back the service beam blocking to the network device, that is, the network device cannot learn the situation of the UE. Therefore, the network device may send a first message to the UE to determine an available beam with the UE by the UE responding to the feedback information of the first message.

When the network device sends the first message, the random transmission policy may be adopted, that is, the network device randomly selects any one or multiple beams to send the first message. Because the network device adopts a random transmission policy, the UE does not know the transmission policy of the network device, and then the UE The first message sent by the network device can be searched by blind search.

In addition, the network device may also send a policy according to a preset when the first message is sent. For example, the network device periodically sends or presets according to a preset transmission policy on one or more beams of multiple beams. The correspondence between the beam and the time point is transmitted. When the network device sends the first message according to the preset sending policy, the UE may still perform the blind search to receive the first message, but in order to save energy consumption during the blind search of the UE, the preset sending policy may be notified in advance. The UE, and then the UE, can perform targeted search according to the preset sending policy during the search, which improves the accuracy of the search and reduces the energy consumption when searching for unwanted beams.

In the embodiment of the present invention, although the service beam of the UE is blocked, the network device still considers to send the first message on the service beam, which is considered, because the service beam may be affected by obstacles or other external factors, and suddenly appears. The signal quality is greatly reduced, but as the UE moves or external factors are removed, the service beam may recover in a short period of time. Therefore, when the network device sends the first message, the first message may still be sent on the service beam.

S305. The UE receives the first message by using the first beam or the second beam.

In the embodiment of the present invention, by step S302 and step S305, the UE may implement the first message from the network device by using the first beam or the second beam.

At this point, the UE can determine the service beam blocking, and then obtain the first message sent by the network device, thereby eliminating the adverse effects caused by the service beam blocking. Correspondingly, the network device can also determine the service beam blocking, and then send the first message, thereby eliminating the adverse effects caused by the service beam blocking.

Further, the communication method provided by the embodiment of the present invention may further adopt one or a combination of the following steps on the basis of the foregoing steps:

S306. The UE sends a response message in response to the first message.

The response message indicates that the UE obtains the beam used by the first message. In the embodiment of the present invention, the response message is changed according to the type of the first message. For example, if the UE searches for the downlink data, the ACK is fed back according to the cyclic redundancy check (CRC) check result. Or NACK, if the UE searches for the uplink scheduling, it sends data on the corresponding resource, and so on.

After searching for the first message from the network device on any of the multiple beams, the UE may perform corresponding feedback to the network device. In the embodiment of the present invention, if the UE receives the first message through only one beam, the UE still sends a response message to the network device by using the beam that receives the first message when the response message is fed back. If the UE receives the first message through two or more beams, the UE may send a response message to the network device by using each of the beams that receive the first message, and may also receive the response message. A beam is selected from the first message beam, and then a response message is sent to the network device through the selected beam. When selecting a beam, the beam with the highest signal quality can be used as the beam for transmitting the response message.

S307. The network device obtains the response message.

The response message indicates that the UE obtains the beam used by the first message.

For the description of the response message and the manner of sending the response message, refer to the description in the foregoing step S306 for details, and details are not described herein again.

S308. The network device sends a beam switching message in response to the response message.

The beam switching message is used to indicate that one of the multiple beams is the next serving beam of the UE. In the embodiment of the present invention, the beam switching message may be a message when the UE normally switches the beam in the field.

After receiving the response message sent by the UE, the network device can determine that there is a better beam to be used with the UE than the current serving beam that is blocked, and the network device can re-determine one beam as the next service beam of the UE. And claiming a beam switching message so that the UE can switch to the next serving beam after receiving the beam switching message.

When the response message of the UE is received through only one beam, the network device directly determines the beam that receives the response message as the next service beam, and when the response message of the UE is received through two or more beams, the network device One beam can be selected from the beams receiving the response message as the next service beam. When selecting a beam, The beam with the highest signal quality is used as the next service beam.

In the embodiment of the present invention, the beam switching message may carry the identification information of the next service beam. In addition, the beam conversion message may be sent on the next service beam when transmitting, or may be any other beam that receives the response message. Send on.

S309. The UE obtains a beam switching message that is sent by the network device in response to the response message.

The beam switching message is used to indicate that one of the multiple beams is the next serving beam of the UE.

After the UE receives the beam switching message, the UE may switch the current serving beam to the next serving beam according to the beam switching message. In this way, the normal communication between the UE and the network device is restored.

The method provided by the embodiment of the present invention can determine the next service beam by means of information interaction, so that the UE switches from the previous service beam to the next service beam to resume communication with the network device.

In a scenario, the network device sends the first message by using one or a combination of the first beam and the second beam, which may include the following manners:

Manner 1: The network device sends the first message by using the first beam and each of the second beams.

Manner 2: The network device sends the first message by using all the beams in the preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of second Beam.

As an example, the preset beam combination includes at least: a service beam, and may further include: a candidate beam or a beam with better communication quality filtered according to the current beam measurement result, where the candidate beam is reported to the UE last time A beam of the network device other than the service beam.

In the embodiment of the present invention, the number of beams in the preset beam combination is smaller than the sum of the number of the first beam and the second beam. When the first message is sent on each of the preset beam combinations, refer to the manner of sending the first message in the foregoing manner, and details are not described herein again.

Method three:

The network device selects a corresponding single beam from the first beam and all the second beams at different time points by using a correspondence between the pre-configured beam and the time point; and sending the first message by using the selected single beam .

Method 4:

Transmitting, by the network device, the first message by using all the beams in the preset beam combination; if all the beams of the preset beam combination are not received, the UE is sent in response to the first message And responding to the message, using a correspondence between the pre-configured beam and the time point, selecting a corresponding single beam from the beams outside the preset beam combination in the multiple beams at different time points; transmitting the selected single beam Said the first message.

As an example, the method may be divided into two stages. In the first stage, the first message is sent to the UE by using all the beams in the preset beam combination, where the first message is sent on each beam in the first stage, Different beams are used at different points in time (subframe level or symbol level).

If the feedback of the UE is still not obtained through the transmission of the first phase, the second phase transmission may be performed, that is, the first message is sent to the UE on all beams or on all beams except the first phase. In addition, in the second phase, in order to reduce system resource consumption, each beam may be sent only at a preset time point, that is, according to the configured beam to time point correspondence, for all beams or all beams except the first stage. Each beam transmits the first message to the UE only at a corresponding time point, wherein the beam-time point correspondence may be notified by the network device to the UE or specified in the protocol. In addition, in order to reduce resource consumption, the network device may also send the PDCCH without carrying downlink data in the second phase.

The four modes listed above are exemplified for facilitating understanding of the embodiments of the present invention, and other similar manners are easily conceivable by those skilled in the art according to the above four modes, and all of the similar manners are also within the protection scope of the present invention.

In the foregoing scenario, in the first mode and the second mode, the network device can send the first message to the UE through multiple beams at the same time, but in another scenario, if the network device cannot send data to the UE through multiple beams at the same time, the network device The data can be transmitted to the UE through only a limited number of beams at any time in a time division manner, and all beams are traversed over a period of time, for example, mode three and mode four in the foregoing scenario.

As an example, a network device transmits data (retransmission) on multiple different beams, and two modes can be selected: mode one, the network device performs M retransmissions on a single beam (M is specified by a protocol or depends on a network device) All the beams are traversed in sequence, and the order of traversal may be from the best beam to the end of the worst beam according to the previous measurement, or simultaneously transmit data on multiple beams. In mode 2, the network device performs only one retransmission on a single beam, and traverses all the beams in sequence to complete one round of retransmissions, and can complete a total of N rounds of transmission (N is specified by the protocol or depends on the base station). The data of each retransmission may be an uplink grant or an uplink grant indication (UL-Grant), a downlink assignment or a downlink assignment (DL-Assignment), and downlink data, or other PDCCH indications.

In one scenario, the UE searches for the first message from the network device on one or more beam combinations of the first beam and the second beam, which may include the following manners:

Manner 1: The UE receives the first message sent by the network device on the first beam and each of the second beams.

Method 2:

The UE searches for all the beams in the preset beam combination, the preset beam combination includes: the first beam, or the first beam and any number of second beams; receiving the network device by using the The first message sent by any one or more of the preset beam combinations.

Method three:

The UE uses a pre-configured correspondence between a beam and a time point to select a corresponding single beam from the first beam and all the second beams to search at different time points; and receive the network device through the selected single beam. The first message sent on.

Method 4:

Searching, by the UE, all the beams in the preset beam combination; when the first message is not received on all the beams of the preset beam combination, using pre-configured beam and time point correspondence, at different times The point selects a corresponding single beam from the beams outside the preset beam combination for searching; and receives the first message sent by the network device through the selected single beam.

The network device can pre-configure the correspondence between the beam and the time point, and the network device notifies the UE of the correspondence between the pre-configured beam and the time point in advance.

In a scenario, the first message may be a physical downlink control channel PDCCH order that triggers random access;

In response to the PDCCH order, the UE may generate a preamble as a response message. And sending the response message by the UE in response to the first message may include the following manner:

Manner 1: The UE sends the preamble on a preset random access resource in a beam used by the first message.

When the UE receives the PDCCH order through one beam, the UE selects the corresponding access resource on the beam used for receiving the PDCCH order according to the beam used when receiving the PDCCH order and the corresponding relationship between the configured beam and the random access resource. Transmitting a preamble to enable the network device to learn the beam used by the UE to receive the PDCCH order.

Manner 2: The UE sends the preamble on a preset random access resource in all the beams used by the first message.

When the UE receives the PDCCH order through the multiple beams, the UE may further select a corresponding access resource transmission preamble on each beam according to the correspondence between each beam and the random access resource, so that the network device The beam used by the UE to receive the PDCCH order is known.

Method three:

And determining, by the UE, a beam having the largest value of the communication quality among all the beams used by the first message, and transmitting the preamble on the preset random access resource in the determined beam.

When the UE receives the PDCCH order through multiple beams, the UE may also select among multiple beams, determine the beam with the highest value of the communication quality as the transmit beam of the first message, and send the first message on the beam. . In the embodiment of the present invention, the value of the communication quality refers to a value that can be used in the field to reflect the beam quality, for example, Reference Signal Receiving Power (RSRP), and Reference Signal Receiving Quality (Reference Signal Receiving Quality, RSRQ) and so on.

In this way, when the UE receives the PDCCH order through multiple beams, when the first message is sent, by selecting the beam with the best communication quality, the subsequent network device can determine the beam with the best communication quality as the next one. The service beam improves the communication quality when the UE uses the next service beam.

Method 4:

After the UE sends the preamble on a preset random access resource in a beam used by the first message, the UE receives the first message from another beam, if the communication quality of another beam The value of the communication is greater than the value of the communication quality of the previous beam, and the preamble is transmitted on the predetermined random access resource in the other beam.

When the UE receives the PDCCH order through multiple beams, the UE may also compare the signal quality of each beam that receives the PDCCH order, first send the preamble according to the first received PDCCH order, and then if the signal quality of the subsequent beam is higher than The first beam transmits a preamble according to the PDCCH order of the beam, and then if the signal quality of the subsequent beam is higher than the current best beam signal quality, the preamble is transmitted according to the PDCCH order of the beam, in this way, the UE finally A transmitted preamble corresponds to the current optimal beam, and the network device receives the preamble sequence through the beam, so that the communication quality of the beam can be easily understood and the optimal beam is grasped.

Corresponding to the multiple manners in which the foregoing UE sends a response message, the network device may determine the next service beam in multiple manners before transmitting the beam switching message.

Manner 1: The preamble is received by one beam, and the network device determines the beam used by the preamble as the next service beam.

Referring to the first mode and the third mode in which the UE sends a response message, the preamble received by the network device has only one beam. Therefore, the network device can determine the beam used by the preamble as the next service beam.

Manner 2: The preamble is received by at least two beams, and the network device determines a beam with the highest signal power of the at least two beams as the next service beam.

Referring to the foregoing manner 2, the UE sends a response message, because the UE sends the response message through multiple beams, the network device receives the preamble through at least two beams. At this time, the network device measures the communication quality of each beam, and then The beam with the highest value of communication quality is determined as the next service beam.

In a third mode, the preamble is received by at least two beams, and the network device determines the beam used by the last received preamble as the next service beam.

Referring to the fourth manner in which the foregoing UE sends a response message, since the UE transmits the response message once on multiple beams, and the beam communication quality of the subsequent transmitted preamble is better than the beam of the previous transmission preamble, the network device can know and finally The communication quality of the beam used to receive the preamble is optimal, and the beam used for the last received preamble can be determined as the next service beam.

In either case, when the next service beam is determined, the network device can directly send the identification information of the next service beam to the UE when the beam switching message is sent, so that the UE can switch to the next service beam.

In another scenario, the first message may be an uplink scheduling grant UL-Grant sent through the PDCCH;

In response to the UL-Grant, the UE measures the communication quality including all beams, and obtains measurement reports of all beams as response messages.

Correspondingly, when sending the response message to the network device, the UE may send the measurement report to the network device by using the preset time-frequency resource on any one of the beams used by the first message.

The determining, by the network device, the next service beam according to the response message may include:

In response to the measurement report, a signal beam maximum beam of all of the plurality of beams is determined as a next service beam.

And the network device sends the identifier information of the next service beam to the UE.

For the manner of transmitting the UL-Grant, the UE only needs to report the beam information on the resource indicated by the first UL-Grant, for example, the measurement result of multiple beams, and the network device can select the optimal beam to transmit the downlink data, and the UE only needs to Listening to data on the optimal beam.

FIG. 4 is a signaling diagram of a communication method according to an exemplary embodiment of the present invention. In this embodiment, the UE can feed back the service beam blocking to the base station through the uplink resource.

S401. The UE determines that the service beam is blocked.

S402. The UE sends a blocking message by using a preset uplink resource.

The blocking message is used to instruct the network device to send the first message in response to the blocking message.

S403. The network device sends the first message by using the first beam or the second beam.

After the network device receives the blocking message sent by the UE by using the preset uplink resource, the network device may determine that the serving beam of the UE is blocked. At this time, the network device does not know whether there is still an available beam between the UE and the UE, so the network device passes the A beam or a second beam transmits a first message in an attempt to communicate with the UE in order to find an available beam.

S404. The UE receives the first message by using the first beam or the second beam.

In the embodiment of the present invention, the UE may enable the beam search function after detecting the service beam blocking, or may enable the beam search function after sending the blocking message in the preset upload resource.

At this point, the UE can determine the service beam blocking and notify the network device of the service beam blocking condition to obtain the first message sent by the network device, thereby eliminating the adverse effects caused by the service beam blocking. Correspondingly, after receiving the blocking message sent by the UE, the network device may send the first message to the UE, thereby eliminating the adverse effect caused by the service beam blocking.

S405. The UE sends a response message in response to the first message.

S406. The network device obtains the response message.

S407. The network device sends a beam switching message in response to the response message.

The difference between the embodiment of the present invention and the embodiment shown in FIG. 3 is that the network device learns the manner in which the service beam of the UE is blocked. The network device does not obtain the feedback information of the UE after sending the information to the UE. The blocking message sent by the preset uplink resource is received. Therefore, in the embodiment of the present invention, for the same step, the corresponding description in the embodiment shown in FIG. 3 is omitted, and details are not described herein again.

In one scenario, the preset uplink resource may be a dedicated uplink scheduling request (SR) resource. The SR resource is a periodically configured resource, and the resource is indicated by two parameters, where sr-ConfigIndex specifies the period of the SR and the subframe offset of the SR in the period, that is, determines the time position of the SR resource; sr-PUCCH-ResourceIndex The SR resource index number of a single moment is specified, which is used to correspond to a specific SR resource frequency domain location and code resource. Optionally, a single UE allocates multiple SR resources in one SR period, that is, one sr-ConfigIndex is matched with multiple sr-PUCCH-ResourceIndex, and the mapping mode is as shown in FIG. 5, and the same SR period and partial are shown in the figure. An example of multiple SR resources in the case of shifting.

In another scenario, multiple sr-ConfigIndexs may be allocated to a single UE, and one or more sr-PUCCH-ResourceIndexs may be used to separate multiple SR resources in different time-frequency resources, and the mapping mode is as shown in FIG. 6. As shown, an example of multiple SR resources for different SR periods and offsets is shown.

The following examples are given:

If the UE allocates two SR resources, one for the uplink resource of the normal application, after receiving the data sent by the SR, the base station sends an uplink scheduling to the UE through the current serving beam; the other is used to indicate the current service of the UE. After the beam is blocked, the base station sends the uplink scheduling to the UE by using the step S404 in the embodiment shown in FIG. 4 after receiving the data sent by the other SR.

In addition, the UE may be allocated more than two SR resources, one for the normal application uplink resource, and the other SRs are used to indicate the current service beam blocking of the UE, and each SR corresponds to a different beam or beam combination respectively. After receiving the data sent by other SRs, the base station knows both the current service beam blocking and which beam is currently in the optimal beam or in which beam group (the division rule of the beam group is notified to the UE in advance by the base station or in the protocol). Provision).

In another scenario, the preset uplink resource may be an uplink reference signal resource. The network device allocates dedicated uplink reference signal resources to the UE, including but not limited to a demodulation reference signal (DMRS) or a sounding reference signal (SRS). When the UE sends the corresponding reference signal, the base station can know The current service beam transmission is blocked, and the indication information is sent to the UE by using the step S404 in the embodiment shown in FIG. 4, which may be an uplink scheduling indication or a PDCCH order that triggers random access.

In the foregoing embodiment, after the service beam of the UE is blocked, the UE and the network device are restored by searching and switching to the next service beam, but in the case of the service beam blocking, the UE will start searching for other The beam detecting information that the base station may send, or simultaneously sending a blocking message to the base station on the available uplink resources, but ultimately needs to receive the service beam switching message of the base station, and convert the service beam to other available beams to be the slave beam blocking. restore. If the service beam switching indication sent by the base station is not obtained, and the signal quality of the current serving beam is always lower than a certain threshold, the communication of the UE is seriously affected, and the communication quality of the UE is greatly reduced.

Optionally, after the service beam of the UE is blocked, in an embodiment of the present invention, the communication method may further adopt one or more of the following steps, based on the foregoing embodiments shown in FIG. 3 and FIG. Combination, as shown in Figure 7.

S501: The UE measures channel quality of the service beam for a plurality of preset time periods in response to the service beam blocking.

In the embodiment of the present invention, only the channel quality of the serving beam of the UE may be measured. In other embodiments, the channel quality of two or more beams may also be measured. For details, refer to other embodiments. description.

S502: The UE compares the value of the channel quality of each time period with Qout, and determines whether the measured channel quality in multiple consecutive preset time periods is lower than Qout.

If the measured channel quality is lower than Qout for a plurality of preset time periods, step S503 is performed. Otherwise, returning to step S502, the comparison is continued.

In the embodiment of the present invention, the preset reliability threshold is represented by Qin, the preset unreliable threshold is represented by Qout, and Qout is not a criterion for judging when the service beam is blocked. And the preset reliability threshold is greater than the preset unreliable threshold.

For measuring only the channel quality of the service beam, when comparing in step S502, the channel command of the service beam and Qin and Qout may be directly compared.

S503: The UE starts a preset timer.

S504: The UE compares the value of the channel quality of each time period with Qin, and determines that the channel quality measured in the plurality of preset time periods after the preset timer is started is higher than Qin.

After the preset timer is started, if the measured channel quality is higher than Qin in a plurality of preset time periods after the preset timer is started, step S505 is performed.

S505: The UE terminates the preset timer.

S506: The UE triggers a cell reselection procedure if the measured channel quality is not higher than the Qin and the preset timer expires after the preset timer is started.

In the embodiment of the present invention, if the preset timer expires, it indicates that RLF occurs, that is, there is no available beam in the current cell, so cell reselection is needed, so that the UE can use the beam in other cells to communicate.

According to the method provided by the embodiment of the present invention, after the service beam of the UE is blocked, if the UE does not receive the service beam switching instruction for a long time, and the service beam quality is always lower than the preset threshold, the UE performs a radio link failure (radio link failure). , RLF) decision process, if the service beam quality is improved or the service beam conversion indication of the base station is received in this process, the RLF decision process will be withdrawn, otherwise, once the RLF is determined, the cell reselection will be restarted and Perform a random access process.

When measuring the channel quality of two or more beams, the UE first acquires beam scanning time information, that is, time information of occurrence of each associated beam, and this information may indicate a beam or a sub-beam. The period in which a subarray appears and the time point in a period.

After receiving the time information, the measurement of the radio link monitoring (RLM)/radio resource management (RRM) of the UE performs the measurement of each beam quality according to the beam appearance time specified by the time information; For the RRM measurement (RSRP/RSRQ), the UE performs each beam sampling measurement according to the beam appearance time specified by the time information to obtain the RSRP/RSRQ value of each beam; for the RLM measurement (RSRP/RSRQ), the UE only follows the Each beam sampling measurement is performed at a beam appearance time specified by the time information, and a value of RSRP/RSRQ of each beam is obtained;

After the measurement results of the multiple beams are obtained, in one scenario, the processes of S501 to S505 are performed for each beam, but the cell reselection process is triggered only when the preset timers corresponding to all the beams are timed out.

In another scenario, based on the measurement results of all the beams, the measurement results that can be used as the UE may be selected from the measurement results of all the beams, for example, the measurement result of the optimal beam is selected as the measurement of the UE in each round of measurement. As a result, the selected measurement result is then compared with Qin and Qout in step S502 to improve the accuracy of the departure cell reselection process.

For convenience of description, the measurement result of the measurement service beam is taken as an example, and the service is described, as shown in FIG. 8.

In FIG. 8, the UE internally includes a UE low layer and a UE upper layer, wherein the UE lower layer measures the channel quality of the beam, and obtains measurement results such as RSRP or RSRQ. The lower layer of the UE compares the measurement result with Qin and Qout. When the measurement result is lower than Qout, the UE generates a first signal, for example, Out of sync, and sends the first signal to the UE upper layer. When the measurement result is higher than Qin, the UE lower layer generates a second signal, for example: In sync, and sends the second signal to the UE upper layer.

When the number of times that the lower layer of the UE continuously sends the first signal to the upper layer of the UE exceeds the first preset number of times, the channel quality measured in the consecutive multiple preset time periods is lower than the preset unreliable threshold value. At this time, the UE starts the preset timer, and after the preset timer is started, if the lower layer continuously sends the second signal to the upper layer of the UE for more than the second preset number, indicating that the measurement is continuous for multiple preset time periods. If the channel quality is higher than the preset reliability threshold, the UE high layer terminates the preset timer. The preset timer has a timing of T.

After the preset timer is started, the number of times that the UE sends the second signal to the upper layer of the UE does not exceed the second preset number of times, the preset timer will time out. At this time, it can be determined that the RLF occurs, and the cell reselection process is triggered. .

The embodiment of the present invention further provides a communication device, which is applied to a user equipment, where the user equipment and the network device can communicate by using multiple beams, where the multiple beams include a first beam and at least one second beam, where The first beam is a service beam for the user equipment to monitor control information, and the second beam is a beam outside the service beam. As shown in FIG. 9, the device includes:

The processing module 91 is configured to determine the service beam blocking;

The receiving module 92 is configured to obtain, by using the first beam or the second beam, a first message from the network device.

FIG. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. In the embodiment of the present invention, the processing module 91 may be the processor 101 in FIG. 10, and the receiving module 92 may be the receiver 102 in FIG.

Optionally, in an embodiment of the present invention, as shown in FIG. 9, the apparatus further includes:

The sending module 93 is configured to send, in response to the first message, a response message, where the response message indicates that the receiving module obtains a beam used by the first message.

In the embodiment of the present invention, the sending module 93 may be the transmitter 103 in FIG.

Optionally, in another embodiment of the present invention, the receiving module 91 is further configured to obtain a beam switching message that is sent by the network device in response to the response message, where the beam switching message is used to indicate the One of multiple beams The beam is the next serving beam of the user equipment.

In another embodiment of the present invention, the sending module 93 is further configured to send a blocking message by using a preset uplink resource, where the blocking message is used to instruct the network device to send the first message in response to the blocking message.

Optionally, in another embodiment of the present invention, the second beam includes multiple beams.

Optionally, in a further embodiment of the present invention, the receiving module 92 is configured to obtain, by using the first beam or the second beam, a first message from the network device, specifically:

The receiving module 92 is configured to receive the first message sent by the network device on the first beam and each of the second beams.

or,

The receiving module 92 is configured to search for all beams in the preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of second beams; And transmitting, by the network device, the first message sent by any one or more of the preset beam combinations;

or,

The receiving module 92 is configured to select a corresponding single beam from the first beam and all the second beams to search at different time points by using a correspondence between the pre-configured beam and the time point; and receiving the network device to pass The first message sent on the selected single beam;

or,

The receiving module 92 is configured to search for all the beams in the preset beam combination; when the first message is not received on all the beams of the preset beam combination, the pre-configured beam and the time point are used. And selecting, at different time points, selecting a corresponding single beam from the beams outside the preset beam combination for searching; receiving the first message sent by the network device by using the selected single beam.

Optionally, in another embodiment of the present invention, the first message carries one or more combinations of indication information and data information.

Optionally, in another embodiment of the present invention, the indication information is a PDCCH order;

The processing module 91 is further configured to generate a preamble in response to the PDCCH order;

The sending module 93 is configured to send a response message in response to the first message, specifically:

The sending module 93 is configured to send the preamble on a preset random access resource in a beam used by the first message.

or,

The sending module 93 is configured to send the preamble on a preset random access resource in all beams used by the first message;

or,

The sending module 93 is configured to determine a beam with the highest signal power among all the beams used by the first message, and send the preamble on a preset random access resource in the beam with the highest power;

or,

The sending module 93 is configured to: after sending the preamble on a preset random access resource in a beam used by the first message, receive the first message from another beam, if another A beam signal power is greater than a signal power of a previous beam, and a preamble is transmitted on a predetermined random access resource in the other beam.

Optionally, in another embodiment of the present invention, the indication information is uplink scheduling indication information;

The processing module 91 is further configured to determine a measurement report that includes communication quality of all beams;

The sending module 93 is configured to send the measurement report by using a preset time-frequency resource on any one of the beams used by the first message.

Optionally, in another embodiment of the present invention, the processing module 93 is further configured to measure at least one of the multiple beams in a plurality of preset time periods in response to the serving beam blocking. Channel quality;

The value of the channel quality of each time period is compared with a preset reliability threshold value and a preset unreliable threshold value, where the preset reliability threshold value is greater than the preset unreliable threshold value;

If the channel quality measured in the plurality of preset time periods is lower than the preset unreliable threshold, the preset timer is started;

Terminating the preset timer if the channel quality measured in the plurality of preset time periods is higher than the preset reliability threshold after the preset timer is started;

If the channel quality measured in the plurality of preset time periods is not higher than the preset reliability threshold and the preset timer expires after the preset timer is started, the cell reselection process is triggered.

The embodiment of the present invention further provides a communication device, which is applied to a network device, where the user equipment and the network device can communicate by using multiple beams, where the multiple beams include a first beam and at least one second beam, where The first beam is a service beam for the user equipment to monitor the control information, and the second beam is a beam outside the service beam. As shown in FIG. 11, the device includes:

The processing module 111 is configured to determine the service beam blocking;

The sending module 112 is configured to send the first message by using the first beam or the second beam.

FIG. 12 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. In the embodiment of the present invention, the processing module 111 may be the processor 121 in FIG. 12, and the receiving module 112 may be the receiver 122 in FIG.

Optionally, in another embodiment of the present invention, as shown in FIG. 11, the apparatus further includes: a receiving module 113;

The processing module 111 is configured to determine the service beam blocking, specifically:

If the network device sends the second message, the receiving module 113 does not receive the feedback message sent by the user equipment in response to the second message within a preset duration; the processing module 111 is configured to determine The service beam is blocked;

or,

The processing module 111 is configured to determine the service beam blocking if the receiving module 113 receives the blocking message sent by the user equipment by using the first beam or the second beam.

In the embodiment of the present invention, the sending module 113 may be the transmitter 123 in FIG.

Optionally, in another embodiment of the present invention, the receiving module 112 is further configured to obtain a response message sent by the user equipment in response to the first message, where the response message indicates that the user equipment obtains a beam used by the first message;

The sending module 113 is further configured to: in response to the response message, the network device sends a beam switching message, where the beam switching message is used to indicate that one of the multiple beams is the next one of the user equipment Service beam.

In another embodiment of the present invention, the sending module 113 is configured to send the first beam or the second beam by using the first beam or the second beam. A message, specifically:

The sending module 113 is configured to send the first message by using the first beam and each of the second beams;

or,

The sending module 113 is configured to send the first message by using all the beams in the preset beam combination, where the preset beam combination includes: the first beam, or the first beam and any number of Two beams

or,

The sending module 113 is configured to select a corresponding single beam from the first beam and all the second beams at different time points by using a correspondence between the pre-configured beam and the time point; sending the selected single beam State the first message;

or,

The sending module 113 is configured to send the first message by using all the beams in the preset beam combination; if the user equipment is not received on all beams of the preset beam combination, in response to the a response message sent by a message, using a correspondence between the pre-configured beam and the time point, selecting a corresponding single beam from the beams outside the preset beam combination in the multiple beams at different time points; The single beam transmits the first message.

In still another embodiment of the present invention, the indication information is a PDCCH order;

The receiving module 112 is configured to obtain a response message that is sent by the user equipment in response to the first message, specifically:

The receiving module 112 is configured to receive a preamble sent by the user equipment by using one beam or multiple beams.

Optionally, in another embodiment of the present invention, the processing module 111 is further configured to: if the preamble is received by using one beam, the sending module 113 is configured to use a beam used by the preamble Determining to be the next service beam; or, if the preamble is received by at least two beams, determining a beam having the highest signal power among the at least two beams as the next service beam; or, if the preamble passes Receiving at least two beams, determining a beam used by the last received preamble as the next service beam;

The sending module 113 is configured to send a beam switching message in response to the response message, specifically:

The sending module 113 is configured to send identifier information of the next service beam in response to the response message.

The receiving module 112 is configured to measure reports of all the beams in the multiple beams sent by one beam.

Optionally, in another embodiment of the present invention, the processing module 111 is further configured to: determine, according to the measurement report, a maximum beam of signal power among all the beams in the multiple beams as a next service beam;

The embodiment of the present invention further provides a communication system, which may include the foregoing user equipment shown in FIG. 10 and the network device shown in FIG.

The device embodiments described above are merely illustrative, wherein the unit described as a separate component may be Alternatively, it may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

Through the description of the above embodiments, those skilled in the art can clearly understand that the various embodiments can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on such understanding, the above technical solutions may be embodied in the form of software products in essence or in the form of software products, which may be stored in a computer readable storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments or portions of the embodiments.

Other embodiments of the invention will be apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present invention, which are in accordance with the general principles of the present invention and include common general knowledge or conventional technical means in the art that are not disclosed in the present invention. . The specification and examples are to be considered as illustrative only,

It is to be understood that the invention is not limited to the details of the details of The scope of the invention is limited only by the appended claims.

Claims

A communication method, characterized in that a user equipment and a network device can communicate using a plurality of beams, the plurality of beams comprising a first beam and at least one second beam, wherein the first beam is monitored by the user equipment a service beam of control information, the second beam being a beam outside the service beam, the method comprising:

The user equipment determines that the service beam is blocked;

The user equipment obtains a first message from the network device by using the first beam or the second beam.
The method of claim 1 further comprising:

In response to the first message, the user equipment sends a response message indicating that the user equipment obtains a beam used by the first message.
The method of claim 2, wherein the method further comprises:

The user equipment obtains a beam switching message sent by the network device in response to the response message, where the beam switching message is used to indicate that one of the multiple beams is the next serving beam of the user equipment.
The method of claim 1 further comprising:

The user equipment sends a blocking message by using a preset uplink resource, where the blocking message is used to instruct the network device to send the first message in response to the blocking message.
The method of claim 2 or 3 or 4 wherein the second beam comprises a plurality of beams.
The method according to claim 5, wherein the user equipment obtains the first message from the network device by using the first beam or the second beam, including:

Receiving, by the user equipment, the first message sent by the network device, on the first beam and each of the second beams;

or,

The user equipment searches for all beams in the preset beam combination, and the preset beam combination includes:

The first beam, or the first beam and any number of second beams;

Receiving, by the network device, a first message sent by any one or more of the preset beam combinations;

or,

The user equipment selects a corresponding single beam from the first beam and all the second beams to search at different time points by using a correspondence between the pre-configured beam and the time point;

Receiving, by the network device, a first message sent by using the selected single beam;

or,

The user equipment searches for all beams in the preset beam combination;

When the first message is not received on all the beams of the preset beam combination, using pre-configured beam and time point correspondence, from the multiple beams or preset beam combinations at different time points Select a corresponding single beam in the beam to search;

Receiving a first message sent by the network device over the selected single beam.
The method of claim 2 wherein said first message carries:

One or more combinations of indication information and data information.
The method according to claim 7, wherein the indication information is a physical downlink control channel PDCCH order;

The method further includes:

Generating, by the user equipment, a preamble in response to the PDCCH order;

In response to the first message, the user equipment sends a response message, including:

Transmitting, by the user equipment, the preamble on a preset random access resource in a beam used by the first message;

or,

The user equipment sends the preamble on a preset random access resource in all beams used by the first message;

or,

Determining, by the user equipment, a beam having the largest value of the communication quality among all the beams used by the first message, and transmitting the preamble on the preset random access resource in the determined beam;

or,

After the user equipment sends the preamble on a preset random access resource in a beam used by the first message, the user equipment receives the first message from another beam, and if another beam communicates The value of the quality is greater than the value of the communication quality of the previous beam, and the preamble is transmitted on the predetermined random access resource in the other beam.
The method according to claim 7, wherein the indication information is uplink scheduling indication information;

The method further includes:

The user equipment determines a measurement report including communication quality of all beams;

In response to the first message, the user equipment sends a response message, including:

The user equipment sends the measurement report by using a preset time-frequency resource on any one of the beams used by the first message.
The method of claim 3, wherein the method further comprises:

Responsive to the serving beam blocking, the user equipment measures channel quality of at least one of the plurality of beams for a plurality of preset time periods;

The user equipment compares the value of the channel quality of each time period with a preset reliability threshold value and a preset unreliable threshold value, where the preset reliability threshold value is greater than the preset unreliable threshold value. value;

The user equipment starts a preset timer if the channel quality measured in the plurality of preset time periods is lower than the preset unreliable threshold value;

If the channel quality measured in a plurality of preset time periods is higher than a preset reliability threshold after the preset timer is started, the user equipment terminates the preset timer;

If the channel quality measured in the preset preset time period is not higher than the preset reliability threshold and the preset timer expires, the user equipment triggers cell reselection. Process.
A communication method, characterized in that a user equipment and a network device can communicate using a plurality of beams, the plurality of beams comprising a first beam and at least one second beam, wherein the first beam is monitored by the user equipment a service beam of control information, the second beam being a beam outside the service beam, the method comprising:

The network device determines that the service beam is blocked;

The network device sends the first message by using the first beam or the second beam.
The method of claim 11 wherein said network device determines said service beam Blocking, including:

After the network device sends the second message, the network device does not receive the feedback message sent by the user equipment in response to the second message within a preset duration;

The network device determines that the service beam is blocked;

or,

And if the network device receives the blocking message sent by the user equipment by using the first beam or the second beam, the network device determines that the service beam is blocked.
The method of claim 11 wherein the method further comprises:

The network device obtains a response message sent by the user equipment in response to the first message, where the response message indicates that the user equipment obtains a beam used by the first message;

In response to the response message, the network device sends a beam switch message, the beam switch message being used to indicate that one of the plurality of beams is the next serving beam of the user equipment.
The method of claim 11 or 12 or 13, wherein the second beam comprises a plurality of beams.
The method according to claim 14, wherein the sending, by the network device, the first message by using the first beam or the second beam comprises:

Transmitting, by the network device, the first message by using the first beam and each of the second beams;

or,

The network device sends the first message by using all the beams in the preset beam combination, where the preset beam combination includes:

The first beam, or the first beam and any number of second beams;

or,

The network device uses a correspondence between the pre-configured beam and the time point to select a corresponding single beam from the first beam and all the second beams at different time points;

Transmitting the first message by the selected single beam;

or,

Transmitting, by the network device, the first message by using all beams in the preset beam combination;

If the response message sent by the user equipment in response to the first message is not received on all the beams of the preset beam combination, the corresponding relationship between the pre-configured beam and the time point is used to pass at different time points. Selecting a corresponding single beam among the plurality of beams or the beams outside the preset beam combination;

The first message is transmitted over the selected single beam.
The method of claim 12 wherein said first message carries:

One or more combinations of indication information and data information.
The method according to claim 16, wherein the indication information is a physical downlink control channel PDCCH order;

The obtaining, by the network device, the response message sent by the user equipment in response to the first message includes:

The network device receives a preamble transmitted by the user equipment through one beam or multiple beams.
The method of claim 17, wherein the method further comprises:

If the preamble is received by one beam, the network device uses the beam used by the preamble Set as the next service beam;

or;

If the preamble is received by at least two beams, the network device determines a beam with the highest value of the communication quality in the at least two beams as the next service beam;

Or, if the preamble is received by at least two beams, the network device determines a beam used by the last received preamble as a next service beam;

In response to the response message, the network device sends a beam switch message, including:

The network device sends the identification information of the next service beam in response to the response message.
The method according to claim 16, wherein the indication information is uplink scheduling indication information;

The obtaining, by the network device, the response message sent by the user equipment in response to the first message includes:

The network device receives a measurement report of all beams in the multiple beams sent by the user equipment through one beam.
The method of claim 19, wherein the method further comprises:

The network device determines, in response to the measurement report, a maximum beam of signal power among all of the plurality of beams as a next service beam;

In response to the response message, the network device sends a beam switch message, including:

The network device sends the identification information of the next service beam.
A communication device, configured to be applied to a user equipment, wherein the user equipment and the network device can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second beam, wherein the first The beam is a service beam for the user equipment to monitor the control information, and the second beam is a beam outside the service beam, and the device includes:

a processing module, configured to determine the service beam blocking;

And a receiving module, configured to obtain, by using the first beam or the second beam, a first message from the network device.
The device of claim 21, wherein the device further comprises:

And a sending module, configured to send, in response to the first message, a response message, where the response message indicates that the receiving module obtains a beam used by the first message.
The device according to claim 22, wherein

The receiving module is further configured to obtain a beam switching message that is sent by the network device in response to the response message, where the beam switching message is used to indicate that one of the multiple beams is under the user equipment A service beam.
The device according to claim 21, wherein

The sending module is further configured to send a blocking message by using a preset uplink resource, where the blocking message is used to instruct the network device to send the first message in response to the blocking message.
The apparatus of claim 22 or 23 or 24 wherein the second beam comprises a plurality of beams.
The device according to claim 25, wherein the receiving module is configured to obtain a first message from the network device by using the first beam or the second beam, specifically:

The receiving module is configured to receive the network device on the first beam and each of the second beams The first message sent;

or,

The receiving module is configured to search for all beams in a preset beam combination, where the preset beam combination includes:

The first beam, or the first beam and any number of second beams;

Receiving, by the network device, a first message sent by any one or more of the preset beam combinations;

or,

The receiving module is configured to select a corresponding single beam from the first beam and all the second beams to search at different time points by using a correspondence between the pre-configured beam and the time point;

Receiving, by the network device, a first message sent by using the selected single beam;

or,

The receiving module is configured to search all beams in the preset beam combination;

When the first message is not received on all the beams of the preset beam combination, using a pre-configured beam and a time point correspondence, selecting corresponding ones from the beams outside the preset beam combination at different time points Searching for a single beam;

Receiving a first message sent by the network device over the selected single beam.
The apparatus according to claim 22, wherein said first message carries:

One or more combinations of indication information and data information.
The apparatus according to claim 27, wherein the indication information is a physical downlink control channel PDCCH order;

The processing module is further configured to generate a preamble in response to the PDCCH order;

The sending module is configured to send a response message in response to the first message, specifically:

The sending module is configured to send the preamble on a preset random access resource in a beam used by the first message;

or,

The sending module is configured to send the preamble on a preset random access resource in all beams used by the first message;

or,

The sending module is configured to determine a beam with the largest signal power among all the beams used by the first message, and send the preamble on a preset random access resource in the beam with the highest power;

or,

The sending module is configured to: after sending the preamble on a preset random access resource in a beam used by receiving the first message, receive the first message from another beam, if another The beam signal power is greater than the signal power of the previous beam, and the preamble is transmitted on the preset random access resource in the other beam.
The device according to claim 27, wherein the indication information is uplink scheduling indication information;

The processing module is further configured to determine a measurement report that includes communication quality of all beams;

The sending module is configured to send a response message in response to the first message, specifically:

The sending module is configured to send the measurement report by using a preset time-frequency resource on any one of the beams used by the first message.
The device according to claim 23, wherein

The processing module is further configured to measure channel quality of at least one of the multiple beams in a plurality of preset time periods in response to the serving beam blocking;

The value of the channel quality of each time period is compared with a preset reliability threshold value and a preset unreliable threshold value, where the preset reliability threshold value is greater than the preset unreliable threshold value;

If the channel quality measured in the plurality of preset time periods is lower than the preset unreliable threshold, the preset timer is started;

Terminating the preset timer if the channel quality measured in the plurality of preset time periods is higher than the preset reliability threshold after the preset timer is started;

If the channel quality measured in the plurality of preset time periods is not higher than the preset reliability threshold and the preset timer expires after the preset timer is started, the cell reselection process is triggered.
A communication device, configured to be applied to a network device, wherein the user equipment and the network device can communicate using a plurality of beams, the plurality of beams including a first beam and at least one second beam, wherein the first The beam is a service beam for the user equipment to monitor the control information, and the second beam is a beam outside the service beam, and the device includes:

The processing module is configured to determine the service beam blocking;

The sending module is configured to send the first message by using the first beam or the second beam.
The device of claim 31, wherein the device further comprises:

Receiving module

The processing module is configured to determine the service beam blocking, specifically:

After the network device sends the second message, the receiving module does not receive the feedback message sent by the user equipment in response to the second message within a preset duration;

The processing module is configured to determine the service beam blocking;

or,

And the processing module is configured to determine the service beam blocking if the receiving module receives the blocking message sent by the user equipment by using the first beam or the second beam.
The device of claim 32, wherein

The receiving module is further configured to obtain a response message that is sent by the user equipment in response to the first message, where the response message indicates that the user equipment obtains a beam used by the first message;

The sending module is further configured to: in response to the response message, the network device sends a beam switching message, where the beam switching message is used to indicate that one of the multiple beams is the next service of the user equipment Beam.
The apparatus of claim 31 or 32 or 33 wherein said second beam comprises a plurality of beams.
The device according to claim 34, wherein the sending module is configured to send the first message by using the first beam or the second beam, specifically:

The sending module is configured to send the first message by using the first beam and each of the second beams;

or,

The sending module is configured to send the first message by using all beams in a preset beam combination, where the pre- Let the beam combination include:

The first beam, or the first beam and any number of second beams;

or,

The sending module is configured to select a corresponding single beam from the first beam and all the second beams at different time points by using a correspondence between the pre-configured beam and the time point;

Transmitting the first message by the selected single beam;

or,

The sending module is configured to send the first message by using all the beams in the preset beam combination;

If the response message sent by the user equipment in response to the first message is not received on all the beams of the preset beam combination, the corresponding relationship between the pre-configured beam and the time point is used to pass at different time points. Selecting a corresponding single beam from among the plurality of beams other than the preset beam combination;

The first message is transmitted over the selected single beam.
The apparatus according to claim 32, wherein said first message carries:

One or more combinations of indication information and data information.
The apparatus according to claim 36, wherein the indication information is a physical downlink control channel PDCCH order;

The receiving module is configured to obtain a response message that is sent by the user equipment in response to the first message, specifically:

The receiving module is configured to receive a preamble sent by the user equipment by using one beam or multiple beams.
The device according to claim 37, wherein

The processing module is further configured to: if the preamble is received by using one beam, the sending module is configured to determine a beam used by the preamble as a next service beam;

Or, if the preamble is received by at least two beams, determining a beam with the highest signal power of the at least two beams as the next service beam;

Or, if the preamble is received by at least two beams, determining a beam used by the last received preamble as a next service beam;

The sending module is configured to send a beam switching message in response to the response message, specifically:

The sending module is configured to send identifier information of the next service beam in response to the response message.
The device according to claim 36, wherein the indication information is uplink scheduling indication information;

The receiving module is configured to obtain a response message that is sent by the user equipment in response to the first message, specifically:

The receiving module is configured to measure reports of all beams in the multiple beams sent by one beam.
The device of claim 39, wherein

The processing module is further configured to determine, according to the measurement report, a maximum beam of signal power among all of the plurality of beams as a next service beam;

The sending module is configured to send a beam switching message in response to the response message, specifically:

The sending module is configured to send identifier information of the next service beam in response to the response message.
A communication system, comprising:

User equipment and network equipment, wherein the user equipment comprises the communication device of any one of claims 21-30, the network device comprising the communication device of any of claims 31-40.
A computer readable storage medium, comprising instructions, when executed on a computer, causing a computer to perform the method of any one of claims 1 to 10, or causing a computer to perform as claimed in claim 11 The method of any one of 20.
A computer program product, characterized in that it, when run on a computer, causes the computer to perform the method of any one of claims 1 to 10, or such that the computer performs any of claims 11 to 20 The method described in the item.
An apparatus, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processor executes the program as claimed in claims 1 to 10 The method of any of the preceding claims, or the method of any one of claims 11 to 20.